The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2008
Filed:
Mar. 05, 2004
Stipan Katusic, Kelkheim, DE;
Guenther Michael, Karlstein, DE;
Peter Kress, Karlstein, DE;
Andreas Gutsch, Ranstadt, DE;
Friedrich Georg Schmidt, Haltern, DE;
Thomas Hasskerl, Kronberg, DE;
Stipan Katusic, Kelkheim, DE;
Guenther Michael, Karlstein, DE;
Peter Kress, Karlstein, DE;
Andreas Gutsch, Ranstadt, DE;
Friedrich Georg Schmidt, Haltern, DE;
Thomas Hasskerl, Kronberg, DE;
Degussa AG, Duesseldorf, DE;
Abstract
Mixed oxide powder containing indium and tin, with a proportion of indium oxide of between 90 and 98 wt. % and a BET surface area of 40 to 120 m/g, which is in the form of aggregates having an average circumference of less than 500 nm, consists of at least 95% of an indium oxide phase and displays an oxygen content that is lower than the content that theoretically results from In2O3 and SnO2. It is produced by mixing a solution of an indium compound with a solution of a tin compound, atomising this mixture of solutions, pyrolysing the atomised mixture of solutions in a first zone of a reactor and in a second zone of the reactor, following pyrolysis, adding reducing gases to the pyrolysed mixture at one or more points in a quantity such that overall a reducing atmosphere is established in this second zone, and separating the resulting solid from the waste gases in a further, third zone, in which a reducing atmosphere likewise still prevails. It can be used for the production of transparent, electroconductive paints and coatings.